Re: [PATCH 1/3] dt-bindings: rockchip: Add rk809 support for rk817 audio codec

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Hi Rob,

On 1/17/24 06:37, Rob Herring wrote:
On Tue, Jan 16, 2024 at 07:46:16PM +1100, Tim Lunn wrote:
Rockchip RK809 shares the same audio codec as the rk817 mfd, it is also
using the same rk817_codec driver. However it is missing from the
bindings.

Update dt-binding documentation for rk809 to include the audio codec
properties. This fixes the following warning from dtb check:

pmic@20: '#sound-dai-cells', 'assigned-clock-parents', 'assigned-clocks',
    'clock-names', 'clocks', 'codec' do not match any of the regexes:
    'pinctrl-[0-9]+'

Signed-off-by: Tim Lunn <tim@xxxxxxxxxxxxxx>
---

  .../bindings/mfd/rockchip,rk809.yaml          | 30 ++++++++++++++++++-
  1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
index 839c0521f1e5..bac2e751e2f2 100644
--- a/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
+++ b/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
@@ -12,7 +12,7 @@ maintainers:
description: |
    Rockchip RK809 series PMIC. This device consists of an i2c controlled MFD
-  that includes regulators, an RTC, and power button.
+  that includes regulators, an RTC, a power button, and an audio codec.
properties:
    compatible:
@@ -93,6 +93,34 @@ properties:
          unevaluatedProperties: false
      unevaluatedProperties: false
+ clocks:
+    description:
+      The input clock for the audio codec.
How many clocks? (maxItems: 1)

You can drop the description.
Yes just 1 clock, i will fix this.

+
+  clock-names:
+    description:
+      The clock name for the codec clock.
Drop.
Just drop the description? I dont think can drop the clock names as the driver use the name to lookup clock:

devm_clk_get(pdev->dev.parent, "mclk");

+    items:
+      - const: mclk
+
+  '#sound-dai-cells':
+    description:
+      Needed for the interpretation of sound dais.
Common property, don't need the description.
Ok

+    const: 0
+
+  codec:
+    description: |
+      The child node for the codec to hold additional properties. If no
+      additional properties are required for the codec, this node can be
+      omitted.
Why do you need a child node here? Just put the 1 property in the parent
node.
This is how the existing rk817 codec driver was setup. I suppose it was copied from downstream, where there are more properties than just the one. I don't know if there was any intention (or need) to implement those other properties.

+    type: object
+    additionalProperties: false
+    properties:
+      rockchip,mic-in-differential:
+        type: boolean
+        description:
+          Describes if the microphone uses differential mode.
+
  allOf:
    - if:
        properties:
--
2.40.1





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